No, I do not want to use liners or offset grind a standard 1UZ crank. I am not looking for ultimate strength, just usable strength. I have not heard of a 2UZ crank breaking or two-molt mains breaking at 600hp, my goal. I am exploring the various combinations of practical bracket race engine assembly around the "UZ" family. In the end I have settled on a 2UZ short block, bored a safe maximum over bore, custom strong forged pistons, and either aluminum rods or the Lextreme steel rods -- and ported 1UZ heads with a custom, larger-than-stock intake. This is do-able in Thailand (fancy machining is not). I am assuming 400hp at 8 pounds of boost, and 600hp with NOS. Do-able. I am fully cognizant of the development path to more horsepower and stronger (read: more expensive "ultimate") parts, but I will build to my needs and my intended use, within my budget and the technological resources available here in Thailand. A 4.8L (265 cu.in.) is better than a 4.0 (242 cu.in.) in a low-boost, high NOS application -- for me.
By the way, aluminum rods in other than Fuel/Alcohol Blown Hemi, Pro Stock, or high winding "competition eliminator" class drag racing, can and do last a long time, The Hemi guys make 5000++hp, and steel rods would have to be replaced each round too. In fact, anything over 2000hp will have regular rod problems. Aluminum rods CAN be good on the street (with a proper tune and adequate cooling). Heat is the big problem with aluminum rods - it allows the rods to stretch at a much faster rate. For my bracket motor they are a good option -- and cost no more than the Lextreme rods.